What is the bandwidth of the signal that ranges from 40 kHz to 4 MHz
2008
What is the bandwidth of the signal that ranges from 40 kHz to 4 MHz
- A.
36 MHz
- B.
360 kHz
- C.
3.96 MHz
- D.
396 kHz
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Correct answer: C
The bandwidth of a signal is calculated by subtracting the lowest frequency from the highest frequency. Given the range is 40 kHz to 4 MHz, first convert units consistently: 40 kHz equals 0.04 MHz. Then subtract the lower limit from the upper limit: 4 MHz - 0.04 MHz = 3.96 MHz.
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